1984Final results
1984 election for Massachusetts House District 7
Massachusetts House of Representatives · Massachusetts
Frank N. Costa (D) won with 74.8% of the vote, defeating Edward S. Zelazo (R) by 49.5 points.
Frank N. CostaDemocrat · winner · incumbent
74.8%10,925
Edward S. ZelazoRepublican
25.2%3,686
14,614 votes
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET
The seat over time
D − R margin in this seat's races around 1984
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET